<template>
  <div class="login-container">
    <el-form ref="loginForm" :model="loginForm" :rules="loginRules" class="login-form" auto-complete="on" label-position="left">
      <div class="title-container"><h3 class="title">启航日后台</h3></div>

      <el-form-item prop="username">
        <span class="svg-container"><svg-icon icon-class="user" /></span>
        <el-input id="account" ref="username" v-model="loginForm.user" placeholder="请输入帐号" name="username" type="text" tabindex="1" auto-complete="on" />
      </el-form-item>

      <el-form-item prop="password">
        <span class="svg-container"><svg-icon icon-class="password" /></span>
        <el-input
          id="psw"
          :key="passwordType"
          ref="password"
          v-model="loginForm.psw"
          :type="passwordType"
          placeholder="请输入密码"
          name="password"
          tabindex="2"
          auto-complete="on"
          @keyup.enter.native="handleLogin"
        />
        <span class="show-pwd" @click="showPwd"><svg-icon :icon-class="passwordType === 'password' ? 'eye' : 'eye-open'" /></span>
      </el-form-item>
      <div style="padding-bottom: 10px;"><el-checkbox v-model="checked">记住密码</el-checkbox></div>
      <el-button
        id="login_btn"
        :loading="loading"
        type="primary"
        style="width:100%;margin-bottom:30px;background-color: #454545;border-color: #454545;"
        @click.native.prevent="handleLogin"
      >
        登录
      </el-button>
    </el-form>
    <div class="info" style="bottom: 40px;"></div>
    <div class="info"></div>
  </div>
</template>

<script>
import md5 from 'js-md5';
import { doLogin } from '@/api/test.js';
export default {
  name: 'Login',
  data() {
    const validateUsername = (rule, value, callback) => {
      if (value.length == 0) {
        callback(new Error('用户名不能为空！'));
      } else {
        callback();
      }
    };
    const validatePassword = (rule, value, callback) => {
      if (value.length == 0) {
        callback(new Error('密码不能为空！'));
      } else {
        callback();
      }
    };
    return {
      checked: true,
      loginForm: {
        user: '',
        psw: ''
      },
      loginRules: {
        user: [{ required: true, trigger: 'blur', validator: validateUsername }],
        psw: [{ required: true, trigger: 'blur', validator: validatePassword }]
      },
      loading: false,
      passwordType: 'password',
      redirect: undefined
    };
  },
  watch: {
    $route: {
      handler: function(route) {
        this.redirect = route.query && route.query.redirect;
      },
      immediate: true
    }
  },
  mounted() {
    let user = localStorage.getItem('user');
    let psw = localStorage.getItem('psw');
    if (user && psw) {
      //用户名和密码存在时赋值上去
      this.loginForm = {
        user,
        psw
      };
    }
  },
  methods: {
    showPwd() {
      if (this.passwordType === 'password') {
        this.passwordType = '';
      } else {
        this.passwordType = 'password';
      }
      this.$nextTick(() => {
        this.$refs.password.focus();
      });
    },
    handleLogin() {
      this.loading = true;
      //数据格式验证
      this.$refs.loginForm.validate(valid => {
        if (valid) {
          doLogin(this.loginForm).then(res => {
            console.log(res);
            if (!res.msg) {
              if (this.checked) {
                //记住密码
                localStorage.setItem('user', this.loginForm.user);
                localStorage.setItem('psw', this.loginForm.psw);
              }
              localStorage.setItem('userInfo', JSON.stringify(res[0]));
              localStorage.setItem('token', res[0].token);
              localStorage.setItem('vipid', res[0].id);
              localStorage.setItem('hasLogin', true);
              setTimeout(() => {
                this.$router.push({ path: '/' });
              }, 500);
              this.$message.success('登陆成功~');
            } else {
              this.$message.error(res.msg);
              this.loading = false;
            }
          });
        } else {
          console.log('验证失败');
          this.loading = false;
        }
      });
    }
  }
};
</script>

<style lang="scss">
/* 修复input 背景不协调 和光标变色 */
/* Detail see https://github.com/PanJiaChen/vue-element-admin/pull/927 */
.info {
  position: fixed;
  bottom: 20px;
  width: 100%;
  text-align: center;
  color: gainsboro;
}
$bg: #fff;
$light_gray: #fff;
$cursor: #283443;

@supports (-webkit-mask: none) and (not (cater-color: $cursor)) {
  .login-container .el-input input {
    color: $cursor;
  }
}

/* reset element-ui css */
.login-container {
  .el-input {
    display: inline-block;
    height: 47px;
    width: 85%;

    input {
      background: transparent;
      border: 0px;
      -webkit-appearance: none;
      border-radius: 0px;
      padding: 12px 5px 12px 15px;
      color: $light_gray;
      height: 47px;
      caret-color: $cursor;

      &:-webkit-autofill {
        box-shadow: 0 0 0px 1000px $bg inset !important;
        -webkit-text-fill-color: $cursor !important;
      }
    }
  }

  .el-form-item {
    border: 1px solid rgba(255, 255, 255, 0.1);
    background: #454545;
    border-radius: 5px;
    color: #454545;
  }
}
</style>

<style lang="scss" scoped>
$bg: #fff;
$dark_gray: #fff;
$light_gray: #454545;

.login-container {
  min-height: 100%;
  width: 100%;
  background-color: $bg;
  overflow: hidden;

  .login-form {
    position: relative;
    width: 520px;
    max-width: 100%;
    padding: 160px 35px 0;
    margin: 0 auto;
    overflow: hidden;
  }

  .tips {
    font-size: 14px;
    color: #fff;
    margin-bottom: 10px;

    span {
      &:first-of-type {
        margin-right: 16px;
      }
    }
  }

  .svg-container {
    padding: 6px 5px 6px 15px;
    color: $dark_gray;
    vertical-align: middle;
    width: 30px;
    display: inline-block;
  }

  .title-container {
    position: relative;
    display: flex;
    flex-direction: column;
    img {
      margin: 0 auto;
    }
    .title {
      font-size: 26px;
      color: $light_gray;
      margin: 20px auto 30px auto;
      text-align: center;
      font-weight: bold;
    }
  }

  .show-pwd {
    position: absolute;
    right: 10px;
    top: 7px;
    font-size: 16px;
    color: $dark_gray;
    cursor: pointer;
    user-select: none;
  }
}
</style>
